A conveying device for an intelligent coating production line of elevator components

Abstract

A conveying device for an intelligent coating production line of elevator components, comprising a linear conveying device and a turnover device, the turnover device comprising a passive turnover unit arranged at the lower end of the linear conveying device and translating with the movement of the linear conveying device, and a turnover driving unit fixedly arranged in a paint spraying chamber and used for driving the passive turnover unit to rotate. The passive turnover unit on the linear conveying device cooperates with the turnover driving unit in the paint spraying chamber to realize the function of turning over the elevator components conveyed into the paint spraying chamber. The paint spraying structure in the paint spraying chamber only needs to be arranged on one side to realize full spraying of the elevator components, which improves the spraying efficiency, simplifies the paint spraying structure, and has the advantages of reducing pollution, high practicality and good economy.

Description

Technical Field

[0001] This invention belongs to the technical field of profile spraying equipment, specifically relating to a conveying device for an intelligent coating production line for elevator components. Background Technology

[0002] Powder coating is a process in which powder coating is applied to the surface of a workpiece using powder spraying equipment. Under the action of electrostatics, the powder will be evenly adsorbed onto the surface of the workpiece to form a powdery coating. The powdery coating is then baked at high temperature to level and cure, becoming a final coating with different effects. The coating effect of powder coating is superior to that of spray painting in terms of mechanical strength, adhesion, corrosion resistance, and aging resistance.

[0003] The existing production line uses a hanging method to transport parts to the spray booth, which requires spray guns to be set at both ends of the spray booth to complete the double-sided spraying of the parts. When the parts have a complex multi-faceted structure, the double-sided spray gun method cannot cover the surface of the parts. Therefore, manual touch-up is often required, which is not only inefficient, but also affects the health of workers.

[0004] The document CN116281061A discloses a turning machine for lifting and processing forged flanges, including a frame with guide rails symmetrically and fixedly installed on both sides. Two first drive hydraulic rods are symmetrically and fixedly installed inside the frame. Two supports are symmetrically and slidably installed on the guide rails. Two second drive hydraulic rods are fixedly installed on the two supports respectively. A rotary motor is fixedly installed inside the movable end of each of the second drive hydraulic rods. The output end of the rotary motor passes through and is rotatably installed on the movable end of the second drive hydraulic rod. A mounting cavity is opened in the gripper, and two grippers are fixedly installed on the output ends of the two rotary motors respectively. A first fixed roller is slidably installed on one end of each gripper, and the first fixed roller is connected to an adjusting mechanism. A second fixed roller is fixedly installed on the other end of each gripper. This device can realize the function of turning and processing parts, improving the automation level of processing.

[0005] However, the drawback of applying this device to the spraying production line in this field is that the conveying equipment of the production line has multiple nodes for hoisting the parts to be processed, and installing the above structure on each node would result in high modification difficulty and high economic cost.

[0006] Therefore, there is an urgent need for a flipping structure suitable for multi-node conveying equipment to meet the production requirements of automated spraying. Summary of the Invention

[0007] To address the aforementioned problems, the purpose of this invention is to provide a conveying device for an intelligent coating production line for elevator components. By cooperating with a passive flipping unit on a linear conveyor and a flipping drive unit located in the spray painting chamber, the elevator components conveyed to the spray painting chamber are flipped. The spray painting structure in the spray painting chamber only needs to be set on one side to achieve full spraying of the elevator components, which not only improves the spraying efficiency but also simplifies the spraying structure. It has the advantages of reducing pollution, strong practicality, and good economy.

[0008] To achieve the above objectives, the technical solution of the present invention is as follows:

[0009] A conveying device for an intelligent coating production line for elevator components includes a linear conveyor and a tilting device. The tilting device includes a passive tilting unit disposed at the lower end of the linear conveyor and moving with the linear conveyor, and a tilting drive unit fixedly disposed in the spray booth and used to drive the passive tilting unit to rotate. The passive tilting unit includes a fixed shaft, a cylinder rotatably connected to the fixed shaft, a torsion spring disposed between the fixed shaft and the cylinder and fixedly connected at both ends to the fixed shaft and the cylinder respectively, a traction rope with one end wound around the cylinder and the other end extending perpendicular to the side wall of the spray booth, and a lifting component fixedly installed at the lower end of the cylinder for lifting elevator components. The tilting drive unit includes an eccentric wheel fixedly disposed on the side wall of the spray booth and a fixed surface component disposed at the lower end of the eccentric wheel and parallel to the lower surface of the eccentric wheel. When the geometric center of the eccentric wheel is located above the center of rotation, there is a gap between the lower surface of the eccentric wheel and the fixed surface component that allows the traction rope to pass through.

[0010] As a further preferred embodiment of the invention, the traction rope includes a horizontal section for passing through the gap between the lower surface of the eccentric wheel and the fixed surface member, and a semi-circular arc section connected to the horizontal section and wound around the outer surface of the cylinder; the end of the semi-circular arc section away from the horizontal section is fixedly connected to the cylinder.

[0011] As a further preferred embodiment of the present invention, the fixing surface component is a rotating wheel rotatably connected to the side wall of the spray booth, and the rotation axis of the rotating wheel and the rotation axis of the eccentric wheel are located on the same vertical line.

[0012] As a further preferred embodiment of the present invention, an elastic ring is provided on the outer periphery of the rotating wheel.

[0013] As a further preferred embodiment of the present invention, the passive flipping unit further includes a support plate disposed at the lower end of the fixed shaft for supporting the cylinder, and balls disposed on the support plate and arranged in a ring for rolling connection with the lower surface of the cylinder.

[0014] As a further preferred embodiment of the present invention, the outer peripheral surface of the cylinder is provided with an open groove for fixing the traction rope.

[0015] As a further preferred embodiment of the present invention, the end of the semicircular arc segment away from the horizontal segment is provided with a mounting hole, and the surface of the cylinder is provided with a fixing threaded hole that matches the mounting hole.

[0016] As a further preferred embodiment of the present invention, the traction rope is provided with anti-slip strips on the side near the cylinder.

[0017] As a further preferred embodiment of the present invention, the flipping drive unit further includes a drive motor disposed on the side wall of the paint spray chamber and located at the side end of the eccentric wheel, a drive gear disposed on the output end of the drive motor, and a driven gear disposed on the rotating shaft of the eccentric wheel and meshing with the drive gear.

[0018] As a further preferred embodiment of the present invention, the lifting component includes a fixed frame that is fixedly installed at the lower end of the cylinder, and the fixed frame is provided with hooks or clamps.

[0019] In summary, the present invention has the following beneficial effects:

[0020] The conveying equipment provided by this invention, through the cooperation of the passive flipping unit on the linear conveying device and the flipping drive unit located in the spray painting chamber, realizes the function of flipping the elevator parts conveyed to the spray painting chamber. The spraying structure in the spray painting chamber only needs to be set on one side to achieve full spraying of the elevator parts, which not only improves the spraying efficiency, but also simplifies the spraying structure, and has the advantages of reducing pollution, strong practicality and good economy.

[0021] The conveying device provided by this invention divides the structure for achieving the flipping function into a passive flipping unit and a flipping drive unit. The passive flipping unit, which is evenly distributed in the linear conveying device, has a simple structure, low modification cost, and quick installation. The relatively complex flipping drive unit only requires one unit and is fixedly installed in the paint spraying chamber. Compared with the existing technology where the structure for achieving the flipping function needs to be installed entirely on the linear conveying device, this invention greatly reduces the modification cost and has broad application prospects. Attached Figure Description

[0022] Appendix Figure 1 This is a schematic diagram of the position and structure of the present invention from a top-down perspective.

[0023] Appendix Figure 2 This is a partial structural schematic diagram of the present invention from a side view angle.

[0024] Appendix Figure 3 This is a schematic diagram of the passive flipping unit of the present invention from a side view angle.

[0025] Appendix Figure 4 This is a schematic diagram of the passive flipping unit of the present invention from a top-down perspective.

[0026] Appendix Figure 5 This is a partial structural diagram of the flip drive unit of the present invention from a side view angle.

[0027] Attached diagram: Spray booth a, linear conveyor 1, tilting device 2;

[0028] Passive flipping unit 21, flipping drive unit 22;

[0029] Fixed shaft 211, cylinder 212, torsion spring 213, traction rope 214, lifting component 215, support plate 216, ball bearing 217;

[0030] Open groove 2121, fixed threaded hole 2122;

[0031] Horizontal section 2141, mounting hole 2141a, semi-circular arc section 2142, anti-slip strip 2143;

[0032] Fixture 2151;

[0033] Eccentric wheel 221, fixed surface component 222, elastic ring 223, drive motor 224, driving gear 225, driven gear 226. Detailed Implementation

[0034] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," "outer," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] As attached Figures 1-5As shown, this embodiment provides a conveying device for an intelligent coating production line for elevator components, including a linear conveying device 1 and a flipping device 2. The flipping device 2 includes a passive flipping unit 21 disposed at the lower end of the linear conveying device 1 and moving horizontally with the linear conveying device 1, and a flipping drive unit 22 fixedly disposed in the spray booth a and used to drive the passive flipping unit 21 to rotate.

[0037] It is understood that the linear conveying device 1 is a suspended conveyor in the prior art, which generally includes a drive device, a tensioning device, a frequency converter, a chain, a straight rail, a curved rail, a temperature telescopic rail, an inspection rail, and a lubrication device. Part of the straight rail of the suspended conveyor passes through the paint spraying chamber, thereby achieving the purpose of sending the elevator components into the paint spraying chamber for spraying.

[0038] It is worth noting that spray booth a adopts a spray booth structure known in the art, the difference being that the spray booth can have a spray gun installed on only one side. There are multiple passive tilting units 21, each corresponding to a node on the linear conveyor 1 originally used for hoisting elevator components, while the tilting drive unit 22 can be a single unit, installed on the side wall opposite to the side wall where the spray gun is installed in spray booth a.

[0039] In this embodiment, the passive flipping unit 21 includes a fixed shaft 211, a cylinder 212 rotatably connected to the fixed shaft 211, a torsion spring 213 disposed between the fixed shaft 211 and the cylinder 212 and fixedly connected at both ends to the fixed shaft 211 and the cylinder 212 respectively, a traction rope 214 with one end wound around the cylinder 212 and the other end extending along a direction perpendicular to the inner sidewall of the paint spray booth a, and a lifting component 215 fixedly installed at the lower end of the cylinder 212 for lifting elevator components; wherein, the lifting component 215 includes a fixing frame 2151 fixedly installed at the lower end of the cylinder 212, and the fixing frame 2151 is provided with hooks or clamps.

[0040] The flipping drive unit 22 includes an eccentric wheel 221 fixedly mounted on the side wall of the spray booth a, a fixed surface member 222 mounted on the lower end of the eccentric wheel 221 and parallel to the lower surface of the eccentric wheel 221, a drive motor 224 mounted on the side wall of the spray booth a and located at the side end of the eccentric wheel 221, a drive gear 225 mounted on the output end of the drive motor 224, and a driven gear 226 mounted on the rotating shaft of the eccentric wheel 221 and meshing with the drive gear 225; when the geometric center of the eccentric wheel 221 is located above the rotation center, there is a gap between the lower surface of the eccentric wheel 221 and the fixed surface member 222 to allow the traction rope 214 to pass through.

[0041] As a further preferred embodiment, the traction rope 214 includes a horizontal section 2141 for passing through the gap between the lower surface of the eccentric wheel 221 and the fixed surface member 222, and a semi-circular arc section 2142 connected to the horizontal section 2141 and wound around the outer surface of the cylinder 212; the end of the semi-circular arc section 2142 away from the horizontal section 2141 is fixedly connected to the cylinder 212. The horizontal section 2141 needs to remain horizontal; therefore, the material of the traction rope 214 can be a material with shaping ability, such as rubber. The semi-circular arc section 2142 is exactly a semicircle; when the semi-circular arc section 2142 is fully straightened, the traction rope 214 precisely drives the cylinder 212 to complete a 180° rotation, thereby realizing the flipping of the elevator component.

[0042] The conveying equipment provided in this embodiment, through the cooperation of the passive tilting unit 21 and the tilting drive unit 22, achieves a 180° tilting of the hoisted elevator component. The specific working principle is as follows: First, the passive tilting unit 21 is conveyed to the spray gun by the linear conveying device 1. The linear conveying device 1 is stopped, and the spray gun is started to spray the surface of one side of the elevator component hoisted at the lower end of the passive tilting unit 21. Wait for the spraying to be completed. Then, the linear conveying device 1 is started to continue to drive the passive tilting unit 21 forward until the traction rope 214 enters the gap between the lower surface of the eccentric wheel 221 and the fixed surface piece 222. At this point, the linear conveyor 1 stops, and the drive motor 224 starts, driving the eccentric wheel 221 to rotate. The gap between the eccentric wheel 221 and the fixed surface 222 gradually narrows until it presses against the traction rope 214. The eccentric wheel 221 continues to rotate, and under the action of friction, it drives the traction rope 214 to move. The traction rope 214 drives the cylinder 212 to rotate until the cylinder 212 rotates 180°. At this time, the elevator component also rotates 180°, and the traction rope 214 is straightened. The drive motor 224 is turned off, and the eccentric wheel 221 stops rotating. Finally, the spray gun is started to spray the surface of the flipped elevator component. After the double-sided spraying is completed, the drive motor 224 reverses, the gap between the eccentric wheel 221 and the fixed surface 222 increases, and after the traction rope 214 loses the tension at its end, the cylinder 212 rotates under the action of the torsion spring 213, causing the elevator component to reverse to its initial state.

[0043] Under certain conditions, the spray gun can be kept on continuously, allowing for spraying of other surfaces of the rotating elevator components while they are rotating 180°.

[0044] In other operating conditions, a detection element for detecting the entry of the traction rope can be installed at the eccentric wheel 221 or the fixed surface component 222. The detection element is electrically connected to an external controller, which is in turn connected to the drive structure, drive motor 224, and spray gun starting structure on the linear conveyor 1, thereby realizing the function of automated flipping spraying. The detection element, controller, and other components can all adopt existing structures, and the connection methods between them are also existing technologies, so they will not be described in detail in this embodiment.

[0045] It is understood that the fixed surface component 222 refers to a fixed component whose surface is parallel to the lower surface of the eccentric wheel 221, preferably a rotating wheel rotatably connected to the side wall of the paint spray chamber a, wherein the rotation axis of the rotating wheel and the rotation axis of the eccentric wheel 221 are located on the same vertical line.

[0046] It is worth noting that as the gap between the eccentric wheel 221 and the rotating wheel disappears and the eccentric wheel 221 continues to rotate and pull the traction rope 214, the pressure of the eccentric wheel 221 on the rotating wheel gradually increases, which can easily lead to wear on the rotating wheel. Therefore, an elastic ring 223 is provided on the outer circumference of the rotating wheel to reduce this kind of wear.

[0047] As a further preferred embodiment, the passive flipping unit 21 further includes a support plate 216 disposed at the lower end of the fixed shaft 211 for supporting the cylinder 212, and ball bearings 217 disposed on the support plate 216 and arranged in a ring for rolling connection with the lower surface of the cylinder 212. This arrangement improves both the load-bearing capacity of the cylinder 212 and the rotational stability of the cylinder 212.

[0048] As a further preferred embodiment, the outer peripheral surface of the cylinder 212 is provided with an open groove 2121 for fixing the traction rope 214. The purpose of this arrangement is to ensure the path of the traction rope 214 when it is straightened or rolled back, so as to ensure that the next flipping operation can be carried out smoothly.

[0049] As a further preferred embodiment, the end of the semicircular arc segment 2142 away from the horizontal segment 2141 is provided with a mounting hole 2141a, and the surface of the cylinder 212 is provided with a fixing threaded hole 2122 that matches the mounting hole 2141a. The advantage of this arrangement is that it improves the convenience of installing the traction rope 214 and facilitates the replacement of the traction rope 214 as a consumable.

[0050] As a further preferred embodiment, the traction rope 214 is provided with anti-slip strips 2143 on the side near the cylinder 212. The purpose of this arrangement is to increase the friction between the traction rope 214 and the cylinder 212, prevent slippage, and improve the stability of the rotation of the cylinder 212.

[0051] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A conveying device for an intelligent coating production line for elevator components, comprising a linear conveyor (1) and a tilting device (2), characterized in that: The flipping device (2) includes a passive flipping unit (21) disposed at the lower end of the linear conveyor (1) and translated as the linear conveyor (1) moves, and a flipping drive unit (22) fixedly disposed in the spray booth (a) and used to drive the passive flipping unit (21) to rotate. The passive flipping unit (21) includes a fixed shaft (211), a cylinder (212) rotatably connected to the fixed shaft (211), a torsion spring (213) disposed between the fixed shaft (211) and the cylinder (212) and fixedly connected at both ends to the fixed shaft (211) and the cylinder (212) respectively, a traction rope (214) with one end wound around the cylinder (212) and the other end extending in a direction perpendicular to the inner side wall of the paint spraying chamber (a), and a lifting component (215) fixedly installed at the lower end of the cylinder (212) for lifting elevator components. The flipping drive unit (22) includes an eccentric wheel (221) fixedly mounted on the side wall of the spray booth (a), and a fixing surface member (222) mounted at the lower end of the eccentric wheel (221) and parallel to the lower surface of the eccentric wheel (221); when the geometric center of the eccentric wheel (221) is located above the rotation center, There is a gap between the lower surface of the eccentric wheel (221) and the fixed surface member (222) for the traction rope (214) to pass through.

2. The conveying equipment for an intelligent coating production line for elevator components according to claim 1, characterized in that: The traction rope (214) includes a horizontal section (2141) for passing through the gap between the lower surface of the eccentric wheel (221) and the fixed surface member (222), and a semi-circular arc section (2142) connected to the horizontal section (2141) and wound around the outer surface of the cylinder (212); the end of the semi-circular arc section (2142) away from the horizontal section (2141) is fixedly connected to the cylinder (212).

3. The conveying equipment for an intelligent coating production line for elevator components according to claim 1, characterized in that: The fixed surface component (222) is a rotating wheel rotatably connected to the side wall of the spray booth (a), and the rotation axis of the rotating wheel and the rotation axis of the eccentric wheel (221) are located on the same vertical line.

4. The conveying equipment for an intelligent coating production line for elevator components according to claim 3, characterized in that: An elastic ring (223) is provided on the outer periphery of the rotating wheel.

5. The conveying equipment for an intelligent coating production line for elevator components according to claim 1, characterized in that: The passive flipping unit (21) further includes a support plate (216) disposed at the lower end of the fixed shaft (211) and used to support the cylinder (212), and balls (217) disposed on the support plate (216) and arranged in a ring for rolling connection with the lower surface of the cylinder (212).

6. The conveying equipment for an intelligent coating production line for elevator components according to claim 1, characterized in that: The outer peripheral surface of the cylinder (212) is provided with an open groove (2121) for fixing the traction rope (214).

7. The conveying equipment for an intelligent coating production line for elevator components according to claim 2, characterized in that: The end of the semicircular arc segment (2142) away from the horizontal segment (2141) is provided with a mounting hole (2141a), and the surface of the cylinder (212) is provided with a fixing threaded hole (2122) that matches the mounting hole (2141a).

8. The conveying equipment for an intelligent coating production line for elevator components according to claim 1, characterized in that: The traction rope (214) is provided with anti-slip strips (2143) on the side near the cylinder (212).

9. A conveying device for an intelligent coating production line for elevator components according to claim 1, characterized in that: The flip drive unit (22) further includes a drive motor (224) disposed on the side wall of the paint spray chamber (a) and located at the side end of the eccentric wheel (221), a drive gear (225) disposed on the output end of the drive motor (224), and a driven gear (226) disposed on the rotating shaft of the eccentric wheel (221) and meshing with the drive gear (225).

10. A conveying device for an intelligent coating production line for elevator components according to claim 1, characterized in that: The lifting component (215) includes a fixed frame (2151) fixedly installed at the lower end of the cylinder (212), and the fixed frame (2151) is provided with hooks or clamps.

Images